.page-faq {
  --faq-edge: clamp(1.25rem, 3vw, 2.25rem);
  --faq-radius: 3px;
  --faq-accent: var(--gold);
}

.page-faq img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 首屏拼贴 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(1.5rem, 4vw, 2.75rem) clamp(1.75rem, 5vw, 3rem);
}

.page-faq .faq-hero .hh-crumb {
  margin-bottom: clamp(1.25rem, 3.5vw, 2.25rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-hero__lead {
  min-width: 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(2rem, 6.6vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0.8rem 0 0;
  max-width: 18ch;
  color: var(--ink);
}

.page-faq .faq-hero__intro {
  max-width: 46ch;
  margin: 1.15rem 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(13, 13, 14, 0.76);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-faq .faq-hero__figure {
  margin: 0;
  overflow: hidden;
}

.page-faq .faq-hero__figure img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 5 / 3;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: end;
  }
}

/* ---------- 主题跳转条 ---------- */
.page-faq .faq-jump {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-jump a {
  flex: none;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--rule);
  border-left: 2px solid var(--gold);
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  background: var(--sand);
  border-left-color: var(--ink);
}

@media (min-width: 720px) {
  .page-faq .faq-jump {
    flex-wrap: wrap;
    overflow: visible;
  }
}

/* ---------- 分组与手风琴 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 7rem;
}

.page-faq .faq-group--spring { --faq-accent: var(--spring); }
.page-faq .faq-group--summer { --faq-accent: var(--summer); }
.page-faq .faq-group--autumn { --faq-accent: var(--autumn); }
.page-faq .faq-group--winter { --faq-accent: var(--winter); }

.page-faq .faq-group__note {
  margin: 0.6rem 0 0;
  max-width: 58ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(13, 13, 14, 0.66);
}

.page-faq .faq-list {
  display: grid;
  gap: 0.65rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

@media (min-width: 1024px) {
  .page-faq .faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
    align-items: start;
  }
}

.page-faq .faq-item {
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--rule);
  border-left: 3px solid rgba(13, 13, 14, 0.1);
  border-radius: var(--faq-radius);
  overflow: hidden;
  transition: border-color 0.26s var(--ease), background-color 0.26s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--faq-accent);
  background: #ffffff;
}

.page-faq .faq-q {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1.05rem 1.1rem;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
}

.page-faq .faq-q::-webkit-details-marker {
  display: none;
}

.page-faq .faq-q:hover {
  background: rgba(234, 223, 200, 0.42);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -3px;
}

.page-faq .faq-q__mark {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--faq-accent);
}

.page-faq .faq-q__text {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
}

.page-faq .faq-q__plus {
  position: relative;
  flex: none;
  margin-left: auto;
  width: 14px;
  height: 14px;
  color: var(--faq-accent);
}

.page-faq .faq-q__plus::before,
.page-faq .faq-q__plus::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.page-faq .faq-q__plus::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-faq .faq-q__plus::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
  transition: transform 0.28s var(--ease);
}

.page-faq .faq-item[open] .faq-q__plus::after {
  transform: scaleY(0);
}

.page-faq .faq-a {
  padding: 0 1.15rem 1.2rem;
}

.page-faq .faq-a p {
  margin: 0;
  padding-top: 0.95rem;
  border-top: 1px dashed var(--rule);
  font-size: 0.94rem;
  line-height: 1.9;
  color: rgba(13, 13, 14, 0.76);
}

.page-faq .faq-a a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 3px;
}

.page-faq .faq-a a:hover {
  color: var(--night);
}

@keyframes faqDrop {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: none; }
}

.page-faq .faq-item[open] .faq-a {
  animation: faqDrop 0.3s var(--ease) both;
}

/* ---------- 跨设备面板 ---------- */
.page-faq .faq-device {
  display: grid;
  gap: clamp(1.35rem, 3.5vw, 2.25rem);
  margin-top: clamp(1.6rem, 4vw, 2.5rem);
  padding: clamp(1.25rem, 3.5vw, 2.35rem);
  background: var(--night);
  color: var(--paper);
  border-radius: var(--faq-radius);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-device::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--summer) 55%, transparent 100%);
}

.page-faq .faq-device h3 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.25rem, 3vw, 1.85rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 0.7rem 0 0;
  max-width: 22ch;
}

.page-faq .faq-device__copy > p:not(.hh-index) {
  margin: 0.9rem 0 0;
  max-width: 48ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(248, 246, 242, 0.78);
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: fstep;
  margin: 1.35rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .faq-steps li {
  counter-increment: fstep;
  position: relative;
  padding: 0.95rem 1rem 0.95rem 3.2rem;
  background: rgba(248, 246, 242, 0.07);
  border-left: 2px solid var(--gold);
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(248, 246, 242, 0.9);
}

.page-faq .faq-steps li::before {
  content: "0" counter(fstep);
  position: absolute;
  left: 1rem;
  top: 1.02rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq .faq-device__figure {
  margin: 0;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .faq-device__figure img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 8 / 5;
}

@media (min-width: 900px) {
  .page-faq .faq-device {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

/* ---------- 支持区 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: clamp(1.35rem, 3.5vw, 2.25rem);
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

@media (min-width: 960px) {
  .page-faq .faq-support {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

.page-faq .faq-support__main {
  padding: clamp(1.25rem, 3vw, 1.85rem);
  background: var(--sand);
  border-left: 3px solid var(--gold);
  border-radius: var(--faq-radius);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0 0 1.35rem;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-support__list li {
  display: grid;
  gap: 0.25rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid rgba(13, 13, 14, 0.12);
}

.page-faq .faq-support__list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-support__key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--night);
}

.page-faq .faq-support__val {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-support__aside {
  min-width: 0;
  display: grid;
  gap: 0.65rem;
}

.page-faq .faq-support__aside h3 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  line-height: 1.3;
  margin: 0 0 0.35rem;
  color: var(--ink);
}

.page-faq .faq-item--plain {
  background: transparent;
  border-color: var(--rule);
  border-left-width: 1px;
}

.page-faq .faq-item--plain[open] {
  border-left-color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-item--plain .faq-q {
  align-items: flex-start;
  padding: 0.95rem 1rem;
}

.page-faq .faq-item--plain .faq-q__plus {
  margin-top: 0.28rem;
}

/* ---------- 窄屏收束 ---------- */
@media (max-width: 420px) {
  .page-faq .faq-hero h1 {
    font-size: clamp(1.75rem, 9vw, 2.25rem);
  }

  .page-faq .faq-q__text {
    font-size: 0.95rem;
  }

  .page-faq .faq-steps li {
    padding-left: 2.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }

  .page-faq .faq-q__plus::after,
  .page-faq .faq-item,
  .page-faq .faq-jump a {
    transition: none;
  }
}